Toward a Comparative Metrology of Viability Boundary Dynamics: A Cross-Class Measurement Framework

Abstract

This article proposes a comparative metrological framework for investigating viability-boundary dynamics in systems of different kinds. The approach builds upon established developments in viability theory, resilience science, robustness analysis, survivability, and quantitative recovery measurement without seeking to replace these concepts. Three levels of measurement are distinguished: the state of the system, its trajectory and outcome, and the post-disturbance dynamics of the viability boundary itself. Particular attention is paid to displacement, recovery, and directional reconfiguration of the boundary after disturbance. The article formulates the proposition that recovery of an observed state or function does not necessarily imply restoration of the system’s previous capacity to withstand future disturbances. At the same time, changes in the shape or size of the boundary are not automatically interpreted as degradation, because they may reflect adaptive redistribution of resistance among different disturbance directions. A cross-class measurement profile is proposed for subsequent experimental testing in physical, chemical, biological, ecological, technical, and other systems. Keywords: Vitology, viability, viability metrology, dynamic viability boundary, viability kernel, resilience, robustness, survivability, recovery, adaptive reconfiguration, cross-class measurement.